title: Serum immunoglobulins E are related to menstrual cycle.
abstract: During a cross sectional epidemiological survey on a general population sample, 596 fertile women underwent total serum IgE determination. They completed an interviewer-administered standardized questionnaire and were categorized according to their menstrual period. They were divided into two groups: those from days 10 to 20, who were considered to be in the periovulatory phase, and those in the other phases. IgE mean values were significantly different (p = 0.01) in the two groups: particularly, lower IgE values were found in those in periovulatory phase, after accounting for smoking habit and atopic status. By multiple regression analysis, taking into account the independent effects of menstrual period, age, smoking habit, hours of fast, skin prick test reactivity and presence of cough, significantly lower IgE values in the periovulatory phase were found. We hypothesize the possibility that a decrease of IgE concentration occurs during midcycle: a reduced immune response might facilitate the ovuli implantation. Further studies are necessary to longitudinally investigate the trend of IgE in the same women, as well as the distributions and the trends of other immunoglobulins.
authors.affiliation: CNR Institute of Clinical Physiology and Second Division of Internal Medicine, University of Pisa, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Vellutini
authors.forename: G
authors.initials: G
authors.lastname: Viegi
authors.forename: D
authors.initials: D
authors.lastname: Parrini
authors.forename: M
authors.initials: M
authors.lastname: Pedreschi
authors.forename: S
authors.initials: S
authors.lastname: Baldacci
authors.forename: P
authors.initials: P
authors.lastname: Modena
authors.forename: P
authors.initials: P
authors.lastname: Biavati
authors.forename: M
authors.initials: M
authors.lastname: Simoni
authors.forename: L
authors.initials: L
authors.lastname: Carrozzi
authors.forename: C
authors.initials: C
authors.lastname: Giuntini
mesh_terms: D000328:Adult; D000367:Age Factors; D000704:Analysis of Variance; D001249:Asthma / Q000097:blood / Q000276:immunology; D003371:Cough / Q000097:blood / Q000276:immunology; D003430:Cross-Sectional Studies; D010064:Embryo Implantation / Q000276:immunology; D005215:Fasting; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000097:blood / Q000276:immunology; D007073:Immunoglobulin E / Q000097:blood*; D008137:Longitudinal Studies; D008597:Menstrual Cycle / Q000097:blood* / Q000276:immunology; D010060:Ovulation / Q000097:blood / Q000276:immunology; D012044:Regression Analysis; D012135:Respiratory Sounds / Q000276:immunology; D016036:Seroepidemiologic Studies; D012882:Skin Tests; D012907:Smoking / Q000097:blood / Q000276:immunology; D011795:Surveys and Questionnaires
chemical_list: D007073:Immunoglobulin E